Sanev
Does anybody know where i can buy a device with which i can measure the frequency of light from various sources such as bulb light?
Device with which I can measure the frequency of light
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Sanev said:
This one took 5 seconds to find, and there are many more
http://www.shopstellarnet.com/handh...MIg5GzgsST2AIVVrbACh1hsAGpEAYYBSABEgIOsfD_BwE
(You didn't say inexpensive
)
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Science Advisor
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Here's are some less expensive alternatives:
https://www.vernier.com/products/sensors/spectrometers/
https://www.vernier.com/products/sensors/spectrometers/
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The OP hasn't specified the required precision of measurements. All of the devices linked to so far are high-end, multi-function tools.
But if all that is needed is just to be able to split the light into its component frequencies, and evaluate them visually, there are much less expensive options.
A spectroscope (or spectrometer) at its most basic is just a diffraction grating in a tube, optionally with a frequency scale.
Searching for spectroscope on Amazon on Ebay, or just googling for 'spectroscope for sale' will net plenty of hits, including ~10$ classroom tools.
These days you can even build your own on the cheap. The most affordable option is a DIY spectrometer made out of a cardboard box and a CD:
More examples can be found on youtube by searching for DIY spectrometer. More involved ones provide means of capturing the spectra with a webcam or a smartphone, and analysing them with free software or apps.
But if all that is needed is just to be able to split the light into its component frequencies, and evaluate them visually, there are much less expensive options.
A spectroscope (or spectrometer) at its most basic is just a diffraction grating in a tube, optionally with a frequency scale.
Searching for spectroscope on Amazon on Ebay, or just googling for 'spectroscope for sale' will net plenty of hits, including ~10$ classroom tools.
These days you can even build your own on the cheap. The most affordable option is a DIY spectrometer made out of a cardboard box and a CD:
More examples can be found on youtube by searching for DIY spectrometer. More involved ones provide means of capturing the spectra with a webcam or a smartphone, and analysing them with free software or apps.